Coeur d'Alene KOR d?-LAYN) is the largest city and county seat of Kootenai County, Idaho, United States. It is the principal city of the Coeur d'Alene Metropolitan Statistical Area. As of the 2010 census, the population of Coeur d'Alene was 44,137. The city is a satellite city of Spokane, which is located about 30 miles to the west, in the state of Washington. The two cities are the key components of the Spokane-Coeur d'Alene Combined Statistical Area, of which Coeur d'Alene is the third-largest city. Coeur d'Alene is the largest city in northern Idaho Panhandle. The city is situated on the north shore of Lake Coeur d'Alene, 25 miles in length. Locally, Coeur d'Alene is known as the "Lake City", or simply called by its initials: "CDA".The city of Coeur d'Alene has grown significantly in recent years, in part because of a substantial increase in tourism, encouraged by several resorts in the area.